/* Copyright (c) 2010 - 2017, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Use in source and binary forms, redistribution in binary form only, with
* or without modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 2. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 3. This software, with or without modification, must only be used with a Nordic
* Semiconductor ASA integrated circuit.
*
* 4. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
'use strict';
let i = 1;
function _assertValidType(type) {
if (type !== 'primary' && type !== 'secondary') {
throw new Error(`Type can only be 'primary' or 'secondary', not '${type}'.`);
}
}
/**
* Class that represents a GATT service.
*/
class Service {
/**
* Create a service in the Bluetooth `Device's` GATT attribute table.
*
* @constructor
* @param {string} deviceInstanceId The unique ID of the Bluetooth device to add `Service` to.
* @param {string} uuid A 128-bit or 16-bit unique identifier for this service.
* @param {string} type The server service type. 'primary' or `secondary`.
*/
constructor(deviceInstanceId, uuid, type) {
// increment global so `serviceInstanceId` is unique for each created service.
i += 1;
this._instanceId = `${deviceInstanceId}.${i}`;
this._deviceInstanceId = deviceInstanceId;
this.uuid = uuid;
if (this.uuid && !(this.uuid.length === 4 || this.uuid.length === 32)) {
throw new Error('uuid must be 128-bit or 16-bit.');
}
if (type !== undefined) {
_assertValidType(type);
this._type = type;
} else {
this._type = null;
}
this.startHandle = null;
this.endHandle = null;
}
/**
* Get the instanceId of this service (since uuid is not enough to differentiate services).
* @returns {string} Unique ID of this service.
*/
get instanceId() {
return this._instanceId;
}
/**
* Get the Id of the Bluetooth device that this service belongs to.
* 'local.server': local/adapter, non-'local.server': remote peripheral.
* @returns {string} The unique Id of the Bluetooth device that this service belongs to.
*/
get deviceInstanceId() {
return this._deviceInstanceId;
}
/**
* Method that sets the `type` of this service.
*
* @param {string} type The type of this service. 'primary' or `secondary`.
* @returns {void}
*/
set type(type) {
_assertValidType(type);
this._type = type;
}
/**
* Get the type of this service. 'primary' or `secondary`.
* @returns {string} type The type of this service.
*/
get type() {
return this._type;
}
}
module.exports = Service;